100 500 200 700 1000 900 800 600 400 300 Ecology Basics Cell Miracles! Membranes To breathe…or Not...
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Transcript of 100 500 200 700 1000 900 800 600 400 300 Ecology Basics Cell Miracles! Membranes To breathe…or Not...
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Cell History and Microscopes
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These special types of “climbing devices” have been installed to help salmon migrate upstream.
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The loss of a single species may cause a ripple effect felt across an entire ecosystem. This “kind” of
species is called a _____________species because it has an unusually large effect on
its ecosystem.
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This is any type of change that can make an organism better suited for its
environment.
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Organisms that make their own food are autotrophs, but these are organisms that eat autotrophs
(directly or indirectly)
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In population ecology, this describes the maximum number of
individuals that a stable environment can support
indefinitely.
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Some tiny prokaryotes (bacteria) have been found that make their own
food without sunlight. _______________is the process by
which an organism makes food using chemicals (rather than light) as an
energy source.
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In a particular food chain, grass is eaten by rabbits that are eaten by owls. In this food chain, the grass is the producer and the rabbit is the
_____________consumer
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1. _________: organisms that eat only plants.
2. ___________: organisms that eat only animals.
3. _____________: organisms that break down organic matter into simpler
compounds
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The principle of ______________ _______________ states that when two species are competing for the same resources, one species will be better
suited to the niche, and the other species will be pushed into another
niche or become extinct.
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These are 2 examples of A)abiotic factors in an ecosystem and 2
examples of B)biotic factors in an ecosystem.
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We always begin examining microscope slides with this
objective lens in place
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This category of cells has a definite nucleus and organelles.
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A bacteria cell is _____________, since it has no nucleus or membrane-bound
organelles
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“This” microscope part regulates the amount of light on a standard
microscope.
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The ocular lens of a microscope has a magnification of 10X and the objective lens has a magnification of 40X. The
total magnification is….
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In the microscope lab, this is the most notable difference between the onion
epidermis cells and the Elodea leaf cells
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This is the highest magnification a scope could have (with an eyepiece at 10X, a low power objective at 10X and
a high power objective at 50X)
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The Cell Theory states that 1)All organisms are made of __________, 2)All existing cells are produced by other living ___________, and 3)The
____________is the most basic unit of life.
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This “type” of microscope with a light source shining from a)above,
b)beneath or c)both gave us the chance to see our pond water sample
in “3-D”.
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Within a membrane, a cell is filled with a “jellylike substance” called a)______________ that contains
dissolved molecular building blocks. In some cells, this “jelly-like” substance
also contains b)____________, structures specialized to perform
distinct jobs in the cell.
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This is a long whip-like tail used for cellular locomotion.
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This is a major difference between rough and smooth E.R. (endoplasmic
reticulum)
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This is the organelle used in photosynthesis ; it helps to convert
the sun’s energy into food.
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This is the cell organelle that helps to make the proteins that carry out
endless jobs in our bodies
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The process of moving molecules out of a cell
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These are the cells recycling centers: they contain digestive enzymes to digest damaged or foreign material
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List three things that all cells have in common
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This organelle packages, processes and ships proteins and fats; it also functions in producing lysosomes
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Mitochondria and chloroplasts contain a small amount of this
genetic material…it allows them to direct the production of some of
their own proteins
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V Words!
A ____________is a fluid filled sac used for storage of material by the cell
whereas a _____________ is a general name describing small membrane-bound sacs that transport materials
from place to place.
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A membrane is said to be “this” if it allows only certain molecules to pass.
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This is the current cell membrane “model” describing a cell’s texture
and appearance
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Movement of molecules across a cell membrane that does not require
energy input from the cell.
What is passive transport
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This is the process by which water travels from areas of higher to lower concentration across a membrane
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___________transport drives molecules across a membrane from a region of
low concentration to high concentration with the input of
energy.
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A type of endocytosis in which the cell membrane “engulfs” large particles to
bring them into a cell.
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If one of the high energy, unstable phosphate bonds “breaks” from
adenosine triphosphate (ATP), energy is released, and “this” molecule is
produced.
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800
When a cell (90% water and 10% salt) is placed into an environment that is 92% water and 8% salt, the cell will
likely do “this”.
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When concentrations of substances on either side of a membrane are the same, the system is said to be in
_________________.
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Elephants are larger than mice, right? This is the reason why an elephant’s
cells are not much larger than a mouse’s cells.
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This is the color of Bromothymol blue with a large amount of carbon dioxide
is present.
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These are the products of cellular respiration.
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These are the requirements for photosynthesis.
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The primary photosynthetic pigment found in the chloroplast. (Its electrons
are excited by the sun’s energy).
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Chlorophyll reflects these colors (or wavelengths of light) most of all.
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This pigment is a major contributor to a carrot’s orange color.
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According to our snail/elodea lab results, the following hypothesis would
be (supported / not supported / refuted)
Elodea takes in CO2 that the snail breathes out (in the light)
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The ___________ _____________ reactions use energy from the light-dependent
reactions to make sugars.
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This is an example of an electron carrier in photosynthesis or respiration
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These are two factors that affect photosynthesis
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